1 files changed, 275 insertions, 0 deletions
diff --git a/include/dfu.h b/include/dfu.h
new file mode 100644
index 0000000..145a157
--- /dev/null
+++ b/include/dfu.h
@@ -0,0 +1,275 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * dfu.h - DFU flashable area description
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ * authors: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
+ *	    Lukasz Majewski <l.majewski@samsung.com>
+ */
+
+#ifndef __DFU_ENTITY_H_
+#define __DFU_ENTITY_H_
+
+#include <common.h>
+#include <linux/list.h>
+#include <mmc.h>
+#include <spi_flash.h>
+#include <linux/usb/composite.h>
+
+enum dfu_device_type {
+	DFU_DEV_MMC = 1,
+	DFU_DEV_ONENAND,
+	DFU_DEV_NAND,
+	DFU_DEV_RAM,
+	DFU_DEV_SF,
+};
+
+enum dfu_layout {
+	DFU_RAW_ADDR = 1,
+	DFU_FS_FAT,
+	DFU_FS_EXT2,
+	DFU_FS_EXT3,
+	DFU_FS_EXT4,
+	DFU_RAM_ADDR,
+};
+
+enum dfu_op {
+	DFU_OP_READ = 1,
+	DFU_OP_WRITE,
+	DFU_OP_SIZE,
+};
+
+struct mmc_internal_data {
+	int dev_num;
+
+	/* RAW programming */
+	unsigned int lba_start;
+	unsigned int lba_size;
+	unsigned int lba_blk_size;
+
+	/* eMMC HW partition access */
+	int hw_partition;
+
+	/* FAT/EXT */
+	unsigned int dev;
+	unsigned int part;
+};
+
+struct nand_internal_data {
+	/* RAW programming */
+	u64 start;
+	u64 size;
+
+	unsigned int dev;
+	unsigned int part;
+	/* for nand/ubi use */
+	unsigned int ubi;
+};
+
+struct ram_internal_data {
+	void		*start;
+	unsigned int	size;
+};
+
+struct sf_internal_data {
+	struct spi_flash *dev;
+
+	/* RAW programming */
+	u64 start;
+	u64 size;
+};
+
+#define DFU_NAME_SIZE			32
+#ifndef CONFIG_SYS_DFU_DATA_BUF_SIZE
+#define CONFIG_SYS_DFU_DATA_BUF_SIZE		(1024*1024*8)	/* 8 MiB */
+#endif
+#ifndef CONFIG_SYS_DFU_MAX_FILE_SIZE
+#define CONFIG_SYS_DFU_MAX_FILE_SIZE CONFIG_SYS_DFU_DATA_BUF_SIZE
+#endif
+#ifndef DFU_DEFAULT_POLL_TIMEOUT
+#define DFU_DEFAULT_POLL_TIMEOUT 0
+#endif
+#ifndef DFU_MANIFEST_POLL_TIMEOUT
+#define DFU_MANIFEST_POLL_TIMEOUT	DFU_DEFAULT_POLL_TIMEOUT
+#endif
+
+struct dfu_entity {
+	char			name[DFU_NAME_SIZE];
+	int                     alt;
+	void                    *dev_private;
+	enum dfu_device_type    dev_type;
+	enum dfu_layout         layout;
+	unsigned long           max_buf_size;
+
+	union {
+		struct mmc_internal_data mmc;
+		struct nand_internal_data nand;
+		struct ram_internal_data ram;
+		struct sf_internal_data sf;
+	} data;
+
+	int (*get_medium_size)(struct dfu_entity *dfu, u64 *size);
+
+	int (*read_medium)(struct dfu_entity *dfu,
+			u64 offset, void *buf, long *len);
+
+	int (*write_medium)(struct dfu_entity *dfu,
+			u64 offset, void *buf, long *len);
+
+	int (*flush_medium)(struct dfu_entity *dfu);
+	unsigned int (*poll_timeout)(struct dfu_entity *dfu);
+
+	void (*free_entity)(struct dfu_entity *dfu);
+
+	struct list_head list;
+
+	/* on the fly state */
+	u32 crc;
+	u64 offset;
+	int i_blk_seq_num;
+	u8 *i_buf;
+	u8 *i_buf_start;
+	u8 *i_buf_end;
+	u64 r_left;
+	long b_left;
+
+	u32 bad_skip;	/* for nand use */
+
+	unsigned int inited:1;
+};
+
+#ifdef CONFIG_SET_DFU_ALT_INFO
+void set_dfu_alt_info(char *interface, char *devstr);
+#endif
+int dfu_config_entities(char *s, char *interface, char *devstr);
+void dfu_free_entities(void);
+void dfu_show_entities(void);
+int dfu_get_alt_number(void);
+const char *dfu_get_dev_type(enum dfu_device_type t);
+const char *dfu_get_layout(enum dfu_layout l);
+struct dfu_entity *dfu_get_entity(int alt);
+char *dfu_extract_token(char** e, int *n);
+void dfu_trigger_reset(void);
+int dfu_get_alt(char *name);
+int dfu_init_env_entities(char *interface, char *devstr);
+unsigned char *dfu_get_buf(struct dfu_entity *dfu);
+unsigned char *dfu_free_buf(void);
+unsigned long dfu_get_buf_size(void);
+bool dfu_usb_get_reset(void);
+
+int dfu_read(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
+int dfu_write(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
+int dfu_flush(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
+
+/*
+ * dfu_defer_flush - pointer to store dfu_entity for deferred flashing.
+ *		     It should be NULL when not used.
+ */
+extern struct dfu_entity *dfu_defer_flush;
+/**
+ * dfu_get_defer_flush - get current value of dfu_defer_flush pointer
+ *
+ * @return - value of the dfu_defer_flush pointer
+ */
+static inline struct dfu_entity *dfu_get_defer_flush(void)
+{
+	return dfu_defer_flush;
+}
+
+/**
+ * dfu_set_defer_flush - set the dfu_defer_flush pointer
+ *
+ * @param dfu - pointer to the dfu_entity, which should be written
+ */
+static inline void dfu_set_defer_flush(struct dfu_entity *dfu)
+{
+	dfu_defer_flush = dfu;
+}
+
+/**
+ * dfu_write_from_mem_addr - write data from memory to DFU managed medium
+ *
+ * This function adds support for writing data starting from fixed memory
+ * address (like $loadaddr) to dfu managed medium (e.g. NAND, MMC, file system)
+ *
+ * @param dfu - dfu entity to which we want to store data
+ * @param buf - fixed memory addres from where data starts
+ * @param size - number of bytes to write
+ *
+ * @return - 0 on success, other value on failure
+ */
+int dfu_write_from_mem_addr(struct dfu_entity *dfu, void *buf, int size);
+
+/* Device specific */
+#if CONFIG_IS_ENABLED(DFU_MMC)
+extern int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr, char *s);
+#else
+static inline int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr,
+				      char *s)
+{
+	puts("MMC support not available!\n");
+	return -1;
+}
+#endif
+
+#if CONFIG_IS_ENABLED(DFU_NAND)
+extern int dfu_fill_entity_nand(struct dfu_entity *dfu, char *devstr, char *s);
+#else
+static inline int dfu_fill_entity_nand(struct dfu_entity *dfu, char *devstr,
+				       char *s)
+{
+	puts("NAND support not available!\n");
+	return -1;
+}
+#endif
+
+#if CONFIG_IS_ENABLED(DFU_RAM)
+extern int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr, char *s);
+#else
+static inline int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr,
+				      char *s)
+{
+	puts("RAM support not available!\n");
+	return -1;
+}
+#endif
+
+#if CONFIG_IS_ENABLED(DFU_SF)
+extern int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr, char *s);
+#else
+static inline int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr,
+				     char *s)
+{
+	puts("SF support not available!\n");
+	return -1;
+}
+#endif
+
+/**
+ * dfu_tftp_write - Write TFTP data to DFU medium
+ *
+ * This function is storing data received via TFTP on DFU supported medium.
+ *
+ * @param dfu_entity_name - name of DFU entity to write
+ * @param addr - address of data buffer to write
+ * @param len - number of bytes
+ * @param interface - destination DFU medium (e.g. "mmc")
+ * @param devstring - instance number of destination DFU medium (e.g. "1")
+ *
+ * @return 0 on success, otherwise error code
+ */
+#if CONFIG_IS_ENABLED(DFU_TFTP)
+int dfu_tftp_write(char *dfu_entity_name, unsigned int addr, unsigned int len,
+		   char *interface, char *devstring);
+#else
+static inline int dfu_tftp_write(char *dfu_entity_name, unsigned int addr,
+				 unsigned int len, char *interface,
+				 char *devstring)
+{
+	puts("TFTP write support for DFU not available!\n");
+	return -ENOSYS;
+}
+#endif
+
+int dfu_add(struct usb_configuration *c);
+#endif /* __DFU_ENTITY_H_ */